US 41 over Deerpath RD
FairLake County, Illinois · Lake Forest · Structure no. 049003300000000
- Built
- 1937
- 88 years old, rebuilt 1976
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 569 ft
- 3 main spans
- Daily traffic
- 41,000
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 41 over Deerpath RD is a steel continuous stringer/multi-beam or girder carrying US 41 over Deerpath RD in Lake County, Illinois. It was built in 1937 and reconstructed in 1976, so it is 88 years old, older than the Illinois average of 45.3 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 41,000 vehicles a day, roughly 3% of them trucks, projected to reach 39,693 by 2046. The structure is 569 ft (173.4 m) long and 72 ft wide.
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 41 over Deerpath RD built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1976.
What condition is US 41 over Deerpath RD in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.
How much traffic does US 41 over Deerpath RD carry?
About 41,000 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is US 41 over Deerpath RD?
The structure is 569 ft (173.4 m) long with a longest span of 83 ft (25.3 m) and a deck 72 ft wide.
Who owns US 41 over Deerpath RD?
It is owned by the State Highway Agency.